Weather forecast for 10 daysOld Saybrook, CT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 59°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNE 41°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:04 am EDT
- Sunset: 6:04 pm EDT
- details ▼
On Sunday, October 18, the outlook remains bright and sunny.
The temperature will fluctuate from a high of a refreshing 59°F to a low of a brisk 42.8°F.
Today's high temperature will mirror the usual October maximum of 61.9°F.
Sunrise will be at 7:04 am and sunset at 6:04 pm; the daylight will last for 10h and 59min.
The temperature will fluctuate from a high of a refreshing 59°F to a low of a brisk 42.8°F.
Today's high temperature will mirror the usual October maximum of 61.9°F.
Sunrise will be at 7:04 am and sunset at 6:04 pm; the daylight will last for 10h and 59min.
10-day overview
Daily temperatures
Maximum temperature: 66°C.
Minimum temperature: 59°C.
Minimum temperature: 59°C.
Chance of precipitation
Highest chance: Thursday 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 59°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNE 41°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:04 am EDT
- Sunset: 6:04 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 14mphNE 40°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:06 am EDT
- Sunset: 6:02 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 46°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 17mphNNE 24°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:07 am EDT
- Sunset: 6:01 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 61°F
- 45°F
Mostly Sunny
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 16mphNE 34°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:08 am EDT
- Sunset: 5:59 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 46°F
Mostly Sunny
- Precip. probability: 24%
- Precipitation: 0.08"
- Wind: 12mphN 6°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:09 am EDT
- Sunset: 5:58 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 39°F
Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 12mphNNE 20°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:10 am EDT
- Sunset: 5:57 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 41°F
Mostly Sunny
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 9mphNE 44°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:11 am EDT
- Sunset: 5:55 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 61°F
- 45°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphNW 322°
- Humidity: 60%
- UV index: 3
- Sunrise: 7:12 am EDT
- Sunset: 5:54 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 48°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 9mphNW 312°
- Humidity: 60%
- UV index: 3
- Sunrise: 7:14 am EDT
- Sunset: 5:52 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 64°F
- 46°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 9mphN 355°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:15 am EDT
- Sunset: 5:51 pm EDT
- details ▼
Forecasts for the ten-day outlook show that a combination of sun-filled and overcast weather is forecasted.
With a 24% probability, rainfall is predicted only for Thursday. The precipitation will be minimal at 0.08".
In the upcoming days, the highest temperature will range between 59°F and 66.2°F, while the forecast minimum temperature falls between 39.2°F and 48.2°F.
Tuesday and next Monday, with the highest temperature of 66.2°F, will be the warmest days in Old Saybrook; with a maximum temperature of 59°F, Sunday, Friday and Saturday will be the coldest days in Old Saybrook.
With a 24% probability, rainfall is predicted only for Thursday. The precipitation will be minimal at 0.08".
In the upcoming days, the highest temperature will range between 59°F and 66.2°F, while the forecast minimum temperature falls between 39.2°F and 48.2°F.
Tuesday and next Monday, with the highest temperature of 66.2°F, will be the warmest days in Old Saybrook; with a maximum temperature of 59°F, Sunday, Friday and Saturday will be the coldest days in Old Saybrook.
Updated: Oct 18, 2026 @ 06:15:35 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, sun-filled conditions are expected to persist.
Today, the maximum temperature will be 59°F, while the minimum temperature will be 42.8°F.
Today, the highest temperature will be in line with the average maximum temperature in October. Today, the lowest temperature will be a few degrees lower than the average low temperature.
Today, the highest temperature will be in line with the average maximum temperature in October. Today, the lowest temperature will be a few degrees lower than the average low temperature.
On Sunday, in Old Saybrook, sunrise will be at 7:04 am and sunset at 6:04 pm (EDT).
Today, the daylight will last for 10h and 59min.
